Dr Blake's comment: No, sometimes with fibular sesamoid injuries, the one closest to the second metatarsal it is hard to not have the edge of the dancer's pad hit the injury when turning, etc. You, however, as you increase your activity, may want to go back to a thinner dancer's pad (under 3rd through 5th metatarsals).
Dr Blake's comment: I never regret getting a useless MRI. What is a useless MRI? It is one that someone without an injured sesamoid says you do not need. It is a baseline for another MRI possibly 6 months later if needed. When it is needed, you are awfully happy you got the first one. And we are not just talking about the sesamoid. You had blunt trauma, which can produce more unpredictable problems, so the MRI is even more important in your case.
Further comments by Dr Blake: She was kind enough to send me xrays from 4/13, 5/13 and 6/13. Both sesamoids had irregularities, and the big toe joint itself looked slightly arthritic. This is going to make MRI interpretation more difficult, thus we may be opening a can of worms. However, I still think it is a good test for her to have. The sesamoid injury showed no fracture displacement, so healing so be complete at some time.